<template>
  <div class="login-container">
    <div class="login-form-wrap">
      <div class="title-container">
        <h3 class="title">FunLine数据工厂</h3>
      </div>
      <el-tabs v-model="tabName" stretch @tab-click="handleClick">
        <el-tab-pane label="登录" name="login" />
        <el-tab-pane label="注册" name="register" />
      </el-tabs>
      <div v-show="tabName==='login'">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
          <el-form-item prop="username">
            <span class="svg-container">
              <svg-icon icon-class="wechat" />
            </span>
            <el-input
              ref="username"
              v-model="loginForm.username"
              placeholder="用户名"
              name="username"
              type="text"
              tabindex="1"
              auto-complete="on"
            />
          </el-form-item>
          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password" />
            </span>
            <el-input
              :key="passwordType"
              ref="password"
              v-model="loginForm.password"
              :type="passwordType"
              placeholder="密码"
              name="password"
              tabindex="2"
              auto-complete="on"
              @keyup.enter.native="handleLogin"
            />
            <span class="show-pwd" @click="showPwd">
              <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
            </span>
          </el-form-item>
          <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>
        </el-form>
      </div>
      <div v-show="tabName==='register'">
        <el-form v-show="tabName==='register'" ref="registerForm" :model="registerForm" :rules="registerRules" class="login-form" auto-complete="on" label-position="left">
          <el-form-item prop="username">
            <span class="svg-container">
              <svg-icon icon-class="wechat" />
            </span>
            <el-input
              ref="username"
              v-model="registerForm.username"
              placeholder="用户名"
              name="username"
              type="text"
              tabindex="1"
              auto-complete="on"
            />
          </el-form-item>
          <el-form-item prop="name">
            <span class="svg-container">
              <svg-icon icon-class="user" />
            </span>
            <el-input
              ref="name"
              v-model="registerForm.name"
              placeholder="姓名"
              name="name"
              type="text"
              tabindex="1"
              auto-complete="on"
            />
          </el-form-item>
          <el-form-item prop="email">
            <span class="svg-container">
              <svg-icon icon-class="email" />
            </span>
            <el-input
              ref="email"
              v-model="registerForm.email"
              placeholder="邮箱号"
              name="email"
              type="text"
              tabindex="1"
              auto-complete="on"
            />
          </el-form-item>
          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password" />
            </span>
            <el-input
              :key="passwordType"
              ref="password"
              v-model="registerForm.password"
              :type="passwordType"
              placeholder="密码"
              name="password"
              tabindex="2"
              auto-complete="on"
              @keyup.enter.native="handleLogin"
            />
            <span class="show-pwd" @click="showPwd">
              <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
            </span>
          </el-form-item>
          <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleRegister">提交</el-button>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
import { register } from '@/api/user'

export default {
  name: 'Login',
  data() {
    return {
      tabName: 'login',
      loginForm: {
        username: 'zgj',
        password: '123456'
      },
      registerForm: {
        username: '',
        password: '',
        name: '',
        email: ''
      },
      loginRules: {
        username: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
        password: [{ required: true, message: '请输入密码', trigger: 'blur' }]
      },
      registerRules: {
        username: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
        password: [{ required: true, message: '请输入密码', trigger: 'blur' }],
        name: [{ required: true, message: '请输入姓名', trigger: 'blur' }],
        email: [{ required: true, message: '请输入邮箱号', trigger: 'blur' }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    handleClick(tab, event) {
      this.tabName = tab.name
      if (tab.name === 'login') {
        // 清除验证
        this.$refs['loginForm'].clearValidate()
      } else {
        // 清除验证
        this.$refs['registerForm'].clearValidate()
      }
    },
    handleRegister() {
      this.$refs.registerForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.registerUser(this.registerForm).then(() => {
            this.tabName = 'login'
            this.loginForm.username = this.registerForm.username
            this.loginForm.password = this.registerForm.password
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        }
      })
    },
    async registerUser(formName) {
      const { msg } = await register(formName)
      // this.$parent.lists.unshift(data)
      this.$message({
        message: msg,
        type: 'success'
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;
/* tabs标签页居中 */
::v-deep .el-tabs__nav-scroll{
  width: 50%;
  margin: 0 auto;
}
/* 下划线背景颜色修改 */
::v-deep .el-tabs__nav-wrap::after{
  background-color: #2d3a4b;
}
/* 不选中背景颜色修改 */
::v-deep .el-tabs__item {
  color: #eee;
}
/* 选中时背景颜色修改 */
::v-deep .el-tabs__item.is-active{
  color:#1890ff;
}
.login-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form-wrap {
    width: 500px;
    padding: 0 15px 120px;

    .login-form {
      position: relative;
      padding: 10px;
      margin: 0 auto;
      overflow: hidden;
    }

    .svg-container {
      padding: 6px 5px 6px 15px;
      color: $dark_gray;
      vertical-align: middle;
      width: 30px;
      display: inline-block;
    }

    .title-container {
      position: relative;

      .title {
        font-size: 26px;
        color: $light_gray;
        margin: 0px auto 20px auto;
        text-align: center;
        font-weight: bold;
      }
    }

    .show-pwd {
      position: absolute;
      right: 10px;
      top: 7px;
      font-size: 16px;
      color: $dark_gray;
      cursor: pointer;
      user-select: none;
    }
  }
}
</style>
